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Slow-release chelate complementary fertilizer of containing middle quantity and trace elements

A medium and trace element, slow-release technology, used in urea compound fertilizers, fertilization devices, nitrogen fertilizers, etc., can solve problems such as the failure of phosphorus and medium and micro fertilizers, and achieve the effect of prolonging fertilizer efficiency and improving absorption and utilization rate.

Inactive Publication Date: 2009-10-07
SHANDONG GUFENGYUAN BIOTECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some fertilizers are also added medium and micro fertilizers, but the compounds of these medium and micro fertilizers react immediately when they encounter orthophosphate, making the phosphorus and medium and micro fertilizers that participate in the reaction invalid

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: 47.6 parts of urea (N: 46%), potassium chloride (K 2 O: 60%) 20 parts, attapulgite powder 6 parts, ammonium chloride (N: 25%) 20 parts, ammonium sulfate (N: 21%) 6 parts, amino acid chelated calcium 1 part, amino acid chelated magnesium 1 part , 1 part of amino acid chelated zinc, 0.1 part of amino acid chelated iron, 0.2 part of amino acid chelated manganese, 0.01 part of amino acid chelated copper, 0.01 part of amino acid chelated molybdenum, 0.5 part of borax and 0.1 part of dicyandiamide Spray an appropriate amount of steam in the drum granulator or round straight granulator to granulate, and after drying, it will contain a large number of elements (N: 28%, P 2 o 5 : 0%, k 2 O: 12%) and slow release top dressing containing Ca, Mg, S, Fe, Zn, Mn, Cu, Mo, B, Cl.

Embodiment 2

[0011] Embodiment 2: 50 parts of urea (N: 46%), potassium chloride (K 2 O: 60%) 30 parts, attapulgite powder 2 parts, ammonium chloride (N: 25%) 12.8 parts, amino acid chelated calcium 1 part, amino acid chelated magnesium 1 part, amino acid chelated zinc 0.5 parts, amino acid chelated Mix 1 part of iron, 1 part of amino acid chelated manganese, 0.2 part of amino acid chelated copper, 1 part of borax and 0.08 part of dicyandiamide, then spray appropriate amount of steam in the drum granulator or round straight granulator to granulate, and dry After treatment, it will contain a large number of elements (N: 26%, P 2 o 5 : 0%, k 2 O: 18%) and slow release top dressing containing Ca, Mg, S, Fe, Zn, Mn, Cu, B, Cl.

Embodiment 3

[0012] Embodiment 3: 17.4 parts of urea (N: 46%), potassium sulfate (K 2 O: 50%), 8 parts of attapulgite powder, 30 parts of ammonium sulfate (N: 21%), 1 part of amino acid chelated calcium, 1 part of amino acid chelated magnesium, 0.5 parts of amino acid chelated iron, 1 part of amino acid chelated manganese , 0.1 part of amino acid chelated molybdenum, 1 part of borax and 0.02 part of dicyandiamide are mixed evenly, then spray an appropriate amount of steam in a drum granulator or a straight granulator to granulate, and after drying, a large amount of elements (N: 14%, P 2 o 5 : 0%, k 2 O: 20%) and slow release top dressing containing Ca, Mg, S, Fe, Mn, Mo, B.

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Abstract

This invention discloses a sustained-release chelated topdressing fertilizer containing secondary and trace elements. The sustained-release chelated topdressing fertilizer is composed of: urea 10-50 parts, ammonium sulfate 0-30 parts, ammonium chloride 0-35 parts, potassium chloride 0-30 parts, potassium sulfate 0-40 parts, calcium amino acid chelate 0-1 part, magnesium amino acid chelate 0-1 part, ferric amino acid chelate 0-1 part, zinc amino acid chelate 0-1 part, copper amino acid chelate 0-0.2 part, molybdenum amino acid chelate 0-0.1 part, manganese amino acid chelate 0-0.1 part, attapulgite 2-8 parts, borax 0-1 part, and dicyandiamide 0.02-0.1 part. The sustained-release nitrogen fertilizer has long effective period and high utilization rate of nitrogen, and can supplement necessary secondary and trace elements to crops. Crops applied with the sustained-release nitrogen fertilizer have such advantages as high yield, high quality, and no deficiency or loss of nitrogen in late period.

Description

technical field [0001] The invention relates to a topdressing fertilizer, in particular to a slow-release chelating topdressing fertilizer containing medium and trace elements, which belongs to the field of chemical industry. Background technique [0002] At the current stage in our country, nitrogen fertilizer is the main topdressing fertilizer for crops, and N, P, and K compound fertilizers are also used in some areas. Trace elements, resulting in increased crop production and income are restricted to a certain extent. Some fertilizers are also added medium and micro fertilizers, but the compounds of these medium and micro fertilizers react immediately when they encounter orthophosphate, making the phosphorus and medium and micro fertilizers that participate in the reaction invalid. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and develop a kind of slow-release type chelating topdressing fertil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/08C05C9/00C05C11/00C05D1/00C05D3/00C05D5/00C05D9/02C05G3/90
CPCY02P60/21
Inventor 王学文朱丙臣
Owner SHANDONG GUFENGYUAN BIOTECH GRP
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